Been getting the same issue and with random pages on other series lately.
If you have a VPN and change it to a different country, sometimes it reloads correctly and somtimes you also have to do it on incognito as well
If you were to actually look, he has been doing the 18+ versions versions of previously translated sfw version done months before https://mangadex.org/title/5b853e1d-3649-4794-8abc-3e2eedca640c/choukokubu-no-medusa
I'm pretty sure he's just doing the backlog of 18+ stuff that hasn't been done yet